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UNITED sTATEs PATENT oEEIoE.

JOHN L. RACE, OF PORT WASHINGTON, IVISGONSIN.

MODE 0F SUSTAINING AND PROTECTING COUPLINGS OF SHAFTING.

Specification of Letters Patent No. 34,982, dated April 15, 1862.

To all whom it may concern:

Be it known that I, JOHN L. RAGE, of Port Washington, in the county ofOzankee and State of Wisconsin, have invented a new and useful devicefor covering the knuckles or joints of rods used in machinery-such, forinstance, as the knuckles of the tumblingrods of threshingmaC-hineS; andI do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, making a part of this specification, in which- Figure l, is aside view of my invention; Fig. 2, an end view of the same; Fig. 3, alongitudinal vertical section of the same, taken in the line m, a', Fig.2; Fig. 4;, a plan or top view of the' same; Figs. 5 and 6, detachedviews of a slide pertaining to the same; Fig. 7, a detached view of anadjustable box pertaining to the same; Fig. 8, a transverse vert-icalsection of the same, taken in the line y, y, Fig. 7.

Similar ltters of reference indicate corresponding parts in the severalfigures.

In many machines jointed shafts or rods which have a rapid motion areexposed at the outer side and the knuckles or joints are very liable tocatch the clothes of the attendants, and frequently serious accidentsoccur' by persons being drawn in contact with the working parts of themachine.

This invention is designed to obviate this difficulty and to this end Ibox theknuckle or joint of the rod in such a manner as to serve as anefficient protection and at the same time admit of the rod beingadjusted to any desired angle required.

rIhe invention consists in placing the joint or knuckle in an adjustablebox which is fitted within a larger box or case, and arrangedsubstantially as hereinafter described. i

To enable those skilled in the -art to fully understand and construct myinvention I will proceed to describe it.

A, represents a box or case of rectangular form and permanently securedto the framing of the machine or to any fixture adjoining it. This boxor case may be of wood or metal, wood probably will be most generallyused. The case A, is provided with a lid a, the ends of the case howeverare open, and

in one end a rest or support b, is secured by a pin c, which passeshorizontally through the case. The rest or support Z), is formed of asquare piece of wood, it is allowed to turn freely on the pin c, and maybe adjusted higher or lower by inserting the pin c, through any of aseries of holes d, in the case, see Figs. l and 3. At the opposite endof the case A, there is fitted a horizontal bar e. This bar has tenonsf, at its ends, which tenons it in grooves g, made in the inner sides ofthe case at its upper end. The bar e, may be readily removed from thecase A, when necessary, and to its outer side there is attached a metalslide L, which is slotted longitudinally the greater portion of itslength, as shown at 9'., and is connected to the bar c, by a screw j,which passes through the slot z', into bar e. The lower end of the slideh, is provided with a horizontal lip or projection 7:.

B, is a box of oblong rectangular form, provided with a lid Z. This boxB, is fitted within the case A, one end of it resting on the support b,and the opposite end resting on the lip or projection 7c, of the slideL, as shown clearly in Fig. 3. Within this box B, the knuckle of theshaft or rod is placed, as shown by the dotted lines in Fig. 3, and itwill be seen that the box B, may be adjusted to any angle to suit theinclination of the shaft or rod by regulating the height of the supportb, and slide z-,the support b, in consequence of fitting loosely on itspin c, is allowed to turn and adjust itself to the box B, so that thebearing surface of the support will be parallel with the bottom of thebox B. By this arrangement therefore, it will be seen that the knucklemay be perfectly inclosed and the box which incloses it adjusted to suitany angle or degree of inclination of the knuckle shaftV or rod.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is The box B, fit-ted within the case A, andresting on the adjustable support b, and slide 7L, all being combinedand arranged substantially as and for the purpose herein set forth.

JOHN L. RACE. litnesses:

LAFAYETTE MosLEr, B- `C- HAYS,

